Mr. Potato Head, that beloved spud, sizzles in three May offerings from Dutton/Playskool: in Mr. Potato Head Across America by Nancy Shayne and Laura Kightlinger, with photo-illustrations by Tom Platoni, the peripatetic potato travels across the country for a family reunion. Included in the package is a fold-out Potato Head family photo ($9.99 paper 48p all ages ISBN 0-525-45553-1). Mr. Potato Head's Mix 'n Match Book, a zany interactive book designed by Barbara Sullivan, illus. by Rick Farley, allows readers to change Mr. Potato Head's funny features with a flip of the triple-section, heavy cardstock pages ($6.99 8p ages 2-up -45550-7); and Who's Got Big Googly Eyes?, a die-cut board book, helps readers create Mr. Potato Head's face, feature by feature, page by page ($7.99 18p ages 1-up -45552-3).